作者:L. S. Vasil’ev、F. E. Surzhikov、S. V. Baranin、V. A. Dorokhov
DOI:10.1007/s11172-013-0173-3
日期:2013.5
A convenient method for the synthesis of 1-alkyl-5-trifluoromethyl-1,6-naphthyridin-4(1H)-ones was elaborated based on the reaction of 4-alkylamino-3-trifluoroacetimidoyl-3-penten-2-one diphenylboron chelates with dimethylformamide dimethyl acetal. 3-Acetyl-4-amino-2-trifluoromethylpyridine was used to obtain 5-trifluoromethyl-1,6-naphthyridin-4(1H)-one and its 2-methoxycarbonyl derivative, as well as 4-methyl-5-trifluoromethylpyrido-[4,3-d]pyrimidine.
基于4-烷胺基-3-三氟乙酰亚胺基-3-戊烯-2-酮二苯硼配合物与二甲基甲酰胺二甲基乙缩醛的反应,详细阐述了一种合成1-烷基-5-三氟甲基-1,6-萘啶-4(1H)-酮的便捷方法。利用3-乙酰基-4-氨基-2-三氟甲基吡啶,合成了5-三氟甲基-1,6-萘啶-4(1H)-酮及其2-甲氧羰基衍生物,以及4-甲基-5-三氟甲基吡啶并[4,3-d]嘧啶。